package com.usian.article.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.usian.article.mapper.ApArticleConfigMapper;
import com.usian.article.mapper.ApArticleContentMapper;
import com.usian.article.mapper.ApArticleMapper;
import com.usian.article.service.ApArticleService;
import com.usian.common.constans.article.ArticleConstans;
import com.usian.model.article.dtos.ArticleInfoDto;
import com.usian.model.article.pojos.ApArticle;
import com.usian.model.article.pojos.ApArticleConfig;
import com.usian.model.article.pojos.ApArticleContent;
import com.usian.model.common.dtos.ArticleHomeDto;
import com.usian.model.common.dtos.ResponseResult;
import com.usian.model.common.enums.AppHttpCodeEnum;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;


@Service
public class ApArticleServiceImpl extends ServiceImpl<ApArticleMapper, ApArticle> implements ApArticleService {
    // 单页最大加载的数字
    private final static short MAX_PAGE_SIZE = 50;

    @Autowired
    private ApArticleMapper apArticleMapper;
    @Autowired
    private ApArticleConfigMapper apArticleConfigMapper;

    @Autowired
    private ApArticleContentMapper apArticleContentMapper;

   @Value("${fdfs.url}")
    private String fileServerUrl;
    @Override
    public ResponseResult load(Short loadtype, ArticleHomeDto dto) {
        //1.校验参数
        Integer size = dto.getSize();
        if(size == null || size == 0){
            size = 10;
        }
        size = Math.min(size,MAX_PAGE_SIZE);
        dto.setSize(size);

        //类型参数检验
        if(!loadtype.equals(ArticleConstans.LOADTYPE_LOAD_MORE)&&!loadtype.equals(ArticleConstans.LOADTYPE_LOAD_NEW)){
            loadtype = ArticleConstans.LOADTYPE_LOAD_MORE;
        }
        //文章频道校验
        if(StringUtils.isEmpty(dto.getTag())){
            dto.setTag(ArticleConstans.DEFAULT_TAG);
        }

        //时间校验
        if(dto.getMaxBehotTime() == null) dto.setMaxBehotTime(new Date());
        if(dto.getMinBehotTime() == null) dto.setMinBehotTime(new Date());
        //2.查询数据
        List<ApArticle> apArticles = apArticleMapper.loadArticleList(dto, loadtype);

        //3.结果封装
        ResponseResult responseResult = ResponseResult.okResult(apArticles);
        responseResult.setHost(fileServerUrl);
        return responseResult;
    }

    @Override
    public ResponseResult loadArticleInfo(ArticleInfoDto dto) {

        Map<String, Object> resultMap = new HashMap<>();

        //1.检查参数
        if(dto == null || dto.getArticleId() == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //2.查询文章的配置
        ApArticleConfig apArticleConfig = apArticleConfigMapper.selectOne(Wrappers.<ApArticleConfig>lambdaQuery().eq(ApArticleConfig::getArticleId, dto.getArticleId()));
        if(apArticleConfig == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID);
        }

        //3.查询文章的内容
        if(!apArticleConfig.getIsDelete()&& !apArticleConfig.getIsDown()){
            ApArticleContent apArticleContent = apArticleContentMapper.selectOne(Wrappers.<ApArticleContent>lambdaQuery().eq(ApArticleContent::getArticleId, dto.getArticleId()));
            resultMap.put("content",apArticleContent);
        }
        resultMap.put("config",apArticleConfig);
        //4.结果返回
        return ResponseResult.okResult(resultMap);
    }
}